Buy It Now!
"Bone Crossed" is the 4th book in the Mercy Thompson series, and unfortunately the next book doesn't come out until March 30th, 2010! I have to wait! The good news is she has a companion series, Alpha and Omega, so I just ordered the first book in that series to read.
In "Bone Crossed" Mercy deals with the ramifications of her actions in previous books. She shows up at her shop one morning to find that it's been covered in graffiti. Some of it is rather harmless, but her door also has magically painted crossed bones on it, and she discovers they are a message from the Vampire Queen Marsalia. It's a sign to show that she has earned disfavor with the Queen, and any one who feels like taking her out has permission.
On top of that, an old acquaintance of Mercy's shows up asking for her help with a ghost. When Mercy investigates she finds the situation to be far more difficult than she would have suspected. Not to mention there is an adorable 10 year old boy who wraps himself around her heart.
There is also an ancient vampire making life even more complicated, but that's what we've come to expect from Mercy! On an interesting side note, she runs into a fae in this book who suggests that her coyote nature is carrying a little bit of "grandfather coyotes" chaos. It certainly explains why so many things happen to her!